God's service brings an approving conscience, a calm heart, strength and gladness. It is in full accord with our best selves. Tranquil joys attend on it. 'In keeping Thy commandments there is great reward,' and that not merely bestowed after keeping, but realised and inherent in the very act. On the other side, think of the stings of conscience, the illusions on which those feed who will not eat of the heavenly food, the husks of the swine-trough, the ashes for bread, that self and the world, in all their forms set before men. A pathetic character in modern fiction says, 'If you make believe very much it is nice.' It takes a tremendous amount of make-believe to keep up an appetite for the world's dainties or to find its meats palatable, after a little while. No sin ever yields the fruit it was expected to produce, or if it does it brings something which was not expected, and the bitter tang of the addition spoils the whole. It may be wisely adapted to secure a given end, but that end is only a means to secure the real end, our substantial blessedness, and that is never attained but by one course of life, the life of service of God. We may indeed win a goodly garment, but the plague is in the stuff and, worn, it will burn into the bones like fire. I read somewhere lately of thieves who had stolen a cask of wine, and had their debauch, but they sickened and died. The cask was examined and a huge snake was found dead in it. Its poison had passed into the wine and killed the drinkers. That is how the world serves those who swill its cup. 'What fruit had ye then in those things whereof ye are _now_ ashamed?' The threatening pronounced against Israel's disobedience enshrines an eternal truth: 'Because thou servedst not the Lord thy God with joyfulness, and with gladness of heart, by reason of the abundance of all things; therefore shalt thou serve thine enemies ... in hunger and in thirst, and in nakedness and in want of all things.' God's service has final issues and the world's service has final issues.